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serial: imx: Fix warning when !CONFIG_SERIAL_IMX_CONSOLE 

When CONFIG_SERIAL_IMX_CONSOLE is not selected the following build warnings
appear:

drivers/tty/serial/imx.c:274:13: warning: 'imx_port_ucrs_save' defined but not used [-Wunused-function]
drivers/tty/serial/imx.c:283:13: warning: 'imx_port_ucrs_restore' defined but not used [-Wunused-function]

imx_port_ucrs_save() and imx_port_ucrs_restore() are only used when
CONFIG_CONSOLE_POLL or CONFIG_SERIAL_IMX_CONSOLE are selected, so protect these
functions declaration with a proper ifdef.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Fabio Estevam 2013-06-05 00:58:46 -03:00 committed by Greg Kroah-Hartman
parent 9f6d20ff84
commit e8bfa76073
1 changed files with 2 additions and 0 deletions
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2
drivers/tty/serial/imx.c
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@ -272,6 +272,7 @@ static inline int is_imx21_uart(struct imx_port *sport)
/*
* Save and restore functions for UCR1, UCR2 and UCR3 registers
*/
#if defined(CONFIG_CONSOLE_POLL) || defined(CONFIG_SERIAL_IMX_CONSOLE)
static void imx_port_ucrs_save(struct uart_port *port,
struct imx_port_ucrs *ucr)
{
@ -289,6 +290,7 @@ static void imx_port_ucrs_restore(struct uart_port *port,
writel(ucr->ucr2, port->membase + UCR2);
writel(ucr->ucr3, port->membase + UCR3);
}
#endif
/*
* Handle any change of modem status signal since we were last called.